I tested window.print() on an iPhone running iOS 27. Printing worked in Safari, but the same page did nothing when launched as a standalone PWA. Here is what happened with beforeprint, afterprint, and matchMedia('print').
Added a page to your home screen but the PWA opens a different page or the site homepage? Learn whether the launch URL can be changed, how start_url affects launches, what to try first, and when a normal browser bookmark is the better solution.
iOS 27 can show a large blurred area at the top of a home screen PWA. CSS and status bar meta settings did not remove it, but opening and closing a drawer menu unexpectedly did. Here is the real-device experiment and fixed-panel workaround I used to reproduce the behavior.
OJapp Tips is a technical blog documenting real-world PWA behavior, iPhone Safari quirks, home screen installation, manifest.json, Service Worker, Web App Manifest, WebClip, icon cache issues, and practical web development tips based on actual testing with iPhone, Android, and PC.
The articles are based on hands-on experiments from PWA LAB and real development experience with OJapp, Petal, and OJ-Pass. Instead of only repeating official documentation, OJapp Tips focuses on the details developers actually get stuck on.